title: Beat-to-beat variation of the ST segment in a patient with right bundle branch block, persistent ST segment elevation, and ventricular fibrillation: a case report.
abstract: The authors describe a patient with ventricular fibrillation associated with right bundle branch block-like QRS morphology and persisting ST segment elevation in the precordial leads, in whom the morphology of the ST segment changed from the coved type to the saddle-back type or vice versa on a beat-to-beat basis. Such an observation has never been reported in the previous literature.
authors.affiliation: Division of Cardiology, Okinawa Chubu Hospital, Gushikawa City, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Hirata
authors.forename: Y
authors.initials: Y
authors.lastname: Takagi
authors.forename: M
authors.initials: M
authors.lastname: Nakada
authors.forename: M
authors.initials: M
authors.lastname: Kyushima
authors.forename: H
authors.initials: H
authors.lastname: Asato
mesh_terms: D000328:Adult; D000889:Anti-Arrhythmia Agents / Q000627:therapeutic use; D002037:Bundle-Branch Block / Q000503:physiopathology*; D004554:Electric Countershock; D004562:Electrocardiography; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D008297:Male; D008790:Metoprolol / Q000627:therapeutic use; D008801:Mexiletine / Q000627:therapeutic use; D011342:Procainamide / Q000627:therapeutic use; D012008:Recurrence; D013575:Syncope / Q000503:physiopathology; D014693:Ventricular Fibrillation / Q000188:drug therapy / Q000503:physiopathology* / Q000628:therapy
chemical_list: D000889:Anti-Arrhythmia Agents; D008801:Mexiletine; D008790:Metoprolol; D011342:Procainamide